Elements of Harmony (My Little Pony Friendship is Magic); only Discord
Jadis' Wand (The Chronicles of Narnia)
Shinokuni (One Piece)
Mero Mero no Mi (One Piece)
Chastiefol Form Three (Nanatsu no Taizai)
Magic Acorn (Willow)
Ghost Lanterns (Hero: 108)
The Pyroclastic Surge (Pompeii)
Meta (Charmed) using her petrifying gaze.
Bonnie Bennett (The Vampire Diaries) using Expression Magic to turn Silas into stone.
Jadis (The Chronicles of Narnia) could use her infamous wand to petrify her victims.
Evergreen (Fairy Tail) using Stone Eyes.
King (Nanatsu no Taizai) using Chastiefol Form Three: Fossilization.
Daolon Wong (Jackie Chan Adventures) turns an Elf into stone.
Anyone who looks into the eyes of the Guardian ÄRM, Gorgon (Marchen Awakens Romance) will slowly turn to stone.
The breath of the Guardian ÄRM, Cockatrice (Marchen Awakens Romance) petrifies whoever it touches.
Van Kleiss (Generator Rex) petrify victims when he drain nanites from them.
Shinokuni (One Piece) is a deadly gas created from mixing compressed H28 gas with toxic candy. Very much like volcanic ash, Shinokuni clings onto its victims and petrifies them.
Caesar Clown (One piece) obtained the ability to petrify anyone he touches after he used his Gasu Gasu no Mi to fuse himself with Shinokuni.
Hideo Asou can petrify anything he touches.
Basilisx (Super Mario Bros. Z) can petrify anyone by looking at them.
The Grey Gargoyle (Marvel) can petrify anyone by touching them with his right hand, though the effect only lasts for one hour.
Delphyne Gorgon (Marvel)
Anything Dabura (Dragon Ball Z) spits on turns to stone, as was Krillin's unfortunate fate.
Serpentina (Power Rangers: Mystic Force) can summon many snakes (her "children") and when a victim is bitten by her snakes, she can activate her shield causing all who have been bitten to turn to stone.
Basilisk (Valkyrie Crusade)
Medusa (Valkyrie Crusade)
Kratos (God of War) upholds a Gorgon's head to clear way.
Geo-force (DC Comics) has the ability to turn organic material to stone. This ability is not quite explained in the instance where he turns the reanimated corpse of Terra to stone
The Cockatrice (Little Witch Academia) can turn anything that touches its breath into stone.
Fizzlepop Berrytwist/Tempest Shadow (My Little Pony: Friendship is Magic)